KUHN GMD702F User manual

Original instructions
KN121CGB D
OPERATOR'S MANUAL
Disc mower
GMD702F
KN121CGB D
- English - 11-2009
*KN121CGB_D*

Dear Owner
Disc mower
GMD702F
1
$Dear Owner
In buying a Kuhn machine you have chosen wisely. Into it have gone years of thought, research and
improvement. You will find, as have thousands of owners all over the world, that you have the best that
engineering skill and actual field testing can produce. You have purchased a dependable machine, but only
through proper care and operation can you expect to receive the performance and long service built into it.
This manual contains all the necessary information for you to receive full efficiency from your machine. The
performance you get from this machine is largely dependent on how well you read and understand this manual
and apply this knowledge. Please DO NOT ASSUME YOU KNOW HOW TO OPERATE AND MAINTAIN YOUR
MACHINE before reading this manual carefully. KEEP THIS MANUAL AVAILABLE FOR REFERENCE. Pass
it on to the next owner if you re-sell the machine.
Your KUHN dealer can offer a complete line of genuine KUHN service parts. These parts are manufactured and
carefully inspected in the same factory that builds the machine to assure high quality and accurate fitting of any
necessary replacements.
About improvements
We are continually striving to improve our products. We therefore reserve the right to make improvements or
changes when it becomes practical to do so, without incurring any obligations to make changes or additions to
the equipment sold previously.
Designated use of the machine
The GMD702F mower must only be used for the purpose for which it was manufactured: mowing on the ground
of hay fields, grass silage fields and improved pastures for the purpose of harvesting fodder for feeding
livestock.
Copyright 2018 KUHN

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GMD702F
Contents
$Contents
Dear Owner.....................................................................................................................1
Contents..........................................................................................................................2
Identification of the machine.........................................................................................4
Front view..........................................................................................................................................4
Rear view...........................................................................................................................................4
Model identification plate ................................................................................................................5
Optional equipment..........................................................................................................................5
Safety...............................................................................................................................6
Description of symbols used in this document.............................................................................6
Safety instructions...........................................................................................................................7
Location and description of safety decals on the machine .......................................................15
Road safety equipment and recommendations...........................................................................18
Machine specifications................................................................................................19
Description and glossary...............................................................................................................19
Technical specifications................................................................................................................20
Sound levels ...................................................................................................................................20
Putting into service......................................................................................................21
Description of control elements....................................................................................................21
Coupling and uncoupling..............................................................................................................21

Contents
Disc mower
GMD702F
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Instructions for transport............................................................................................ 34
Putting the machine into transport position................................................................................34
Conformity with the road regulations ..........................................................................................37
Instructions for work................................................................................................... 38
Putting the machine into work position.......................................................................................38
Adjustments in working position..................................................................................................40
Machine use....................................................................................................................................43
Optional equipment.....................................................................................................45
Quick release "A" frame coupler..................................................................................................45
1 3/8’’-21 spline yoke......................................................................................................................45
Central gearbox 540 min-1 and 1000 min-1...................................................................................46
Half pto shaft with friction slip clutch and free wheel ................................................................46
Raised skid shoes..........................................................................................................................47
Lighting and signalling device......................................................................................................47
Maintenance and storage............................................................................................ 48
Frequency chart .............................................................................................................................48
Lubrication......................................................................................................................................49
Maintenance....................................................................................................................................54
Storage............................................................................................................................................62
Troubleshooting guide................................................................................................63
Limited Warranty.......................................................................................................... 65

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GMD702F
Identification of the machine
$Identification of the machine
1. Front view
2. Rear view

Identification of the machine
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GMD702F
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3. Model identification plate
Please write below the type and serial number of the
machine. This information is to be given to the Kuhn
authorized dealer for any spare parts order or warranty
claim.
Type: GMD702F
Serial no.:
4. Optional equipment
Tick box corresponding to the equipment fitted on your
machine:
TYPE
MASSE kg
KUHN S.A.
67700 SAVERNE - FRANCE
N°
MADE IN FRANCE
Kit no. 1276870: Quick release "A" frame coupler.
Part no. 4603187: 1 3/8’’ - 21 spline yoke (Central gearbox 1000 min-1).
Part no. 4603256: 1 3/8’’ - 21 spline yoke (Central gearbox 540 min-1 and 1000 min-1).
Kit no. 1036220: Central gearbox 540 min-1 and 1000 min-1.
Kit no. 1036310: Half pto shaft with friction slip clutch and free wheel.
Kit no. 1036250: Raised skid shoes.
Kit no. 1076110: Lighting and signalling device.

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GMD702F
Safety
$Safety
1. Description of symbols used in this
document
This symbol indicates a potentially hazardous situation
that if not avoided, could result in serious bodily injury.
This symbol is used to identify special instructions or
procedures which, if not followed strictly, could result in
machinery damage.
This symbol is used to communicate technical
information of particular interest.

Safety
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GMD702F
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2. Safety instructions
Read and follow the safety instructions
Before using the machine, carefully read all the safety
instructions in this manual and the warnings placed on
the machine.
Before starting work, the operator must be familiar with
all machine controls, handling devices and their
functions. It is too late to learn once work has been
started!
Never let anyone operate the machine who is not trained
to do so.
Should you have any difficulties in understanding any
parts of this manual, please contact your KUHN dealer.
Precautions to be taken before carrying out
any operations on the machine
Before leaving the tractor or before adjusting,
maintaining or repairing the machine, disengage the
PTO drive, turn off the engine, remove ignition key and
wait until all moving parts have come to a complete stop
and apply park brake.
Introduction
The machine must only be operated, maintained and repaired by competent persons who are familiar with
machines' specifications and operation and aware of safety regulations for preventing accidents.
The operator must imperatively respect safety instructions in this manual and in the warnings posted on the
machine. The operatoris also obliged to respect current legislation concerning accident prevention, work safety
and public traffic circulation.
Designated use of the machine also means following operation, maintenance and repair recommendations
given by the manufacturer, and using only genuine spare parts, equipment and accessories, as recommended
by the manufacturer.
The manufacturer is not held liable for any damage resulting from machine applications other than those
specified by the manufacturer. Any use other than the designated operation is at the risk and responsibility of
the operator.
The manufacturer is not held liable for any damage or accident resulting from machine modifications carried out
by the operator himself or by a third party without previous written agreement from the manufacturer.

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GMD702F
Safety
Precautions to take before using the
machine
Do not wear loose clothing which could become caught
up in moving parts.
Wear the appropriate protective clothing for the work in
hand (gloves, shoes, goggles, helmet, ear defenders,
etc.).
Ensure that all operating controls (ropes, cables, rods,
etc) are placed so as they cannot be operated
unintentionally and cause damage or injury.
Before operating the machine, check tightness of nuts
and bolts, particularly on fixing elements (tines, forks,
blades, knives, etc). Retighten if necessary.
Before operating the machine, ensure that all the safety
guards are firmly in place and in good condition.
Immediately replace any worn or damaged guard.
Precautions when driving
Tractor handling, stability, performance and braking
efficiency are all affected by weight distribution, trailedor
mounted implements, additional ballast and driving
conditions. It is therefore of great importance that the
operator exercises caution in every given situation.
Groundspeed must be adapted to ground conditions as
well as to roads and paths. Always avoid abrupt changes
of direction.
Be particularly cautious when turning corners, paying
attention to machine overhang, length, height and
weight.
Never use a narrow track tractor on very uneven or
steeply sloping ground.
Never leave the tractor seat while the machine is
operating.
Carrying people or animals on the machine when
working or in transport is strictly forbidden.